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American Innovation: Benjamin Bacons's Patent Safety Pinion: Improving Merritt Burt's Design (Part 4)

Around 1869, the National Watch Company (Elgin) faced the reality that the safety pinion used in its watch movements was inherently flawed. As a result, the company was forced to explore options to either improve on the existing design or replace it altogether. The company had utilized Merritt Burt's patented safety pinion since it introduced its first movements to the market in 1867. Burt's safety pinion relied on a threaded nut tightened atop a hollowed pinion on the center wheel arbor... Continue Reading

by Nathan Moore, 2 days ago


history Recently Posted

American Innovation: Charles W. Fogg's Safety Pinion: The Better Patent Pinion (Part 3)

While Charles W. Fogg is generally credited with creating the first safety pinion in America, Merritt Burt actually secured a patent for his safety pinion design a few months before Fogg. Despite Burt being first, Fogg's design was ultimately proven to be a more effective safety pinion. Charles W... Continue Reading

by Nathan Moore, 1 week ago


history Recently Posted

American Innovation: Merritt Burt's Safety Pinion: Inside America's First Patented Safety Pinion (Part 2)

Merritt Burt's Patent Safety Pinion (Center Wheel and Pinion from National Watch Company Movement) On September 13, 1864, Merritt Burt was granted the first patent for a safety pinion design in the United States. Patent Illustration for Merritt Burt's Safety Pinion Design At the time of the patent, Merritt Burt was a skilled watchmaker operating a successful jewelry store in Cleveland, Ohio. Merritt Burt - Clock, Watchmaker and JewelerThe Cleveland Leader and Morning HeraldCleveland, OhioWed, Mar 16, 1864 The primary objective of a safety pinion is to save the delicate watch parts from the sudden and destructive force that occurs when a mainspring breaks. Burt's safety pinion design was adopted by the National Watch Company (Elgin) shortly after the company was organized and included in watches sold from the company's market introduction in 1867 until approximately 1871... Continue Reading

by Nathan Moore, 2 weeks ago



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3 Admirations
Serial No.: #2114438
Manufacturer:Illinois
Grade:176
Size:16s
Model:5
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1909
Added By:Mobilaero Profile Image Mobilaero
16 Admirations
Serial No.: #1590831
Manufacturer:Hamilton
Grade:974
Size:16s
Model:2
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1922
Added By:Mobilaero Profile Image Mobilaero
4 Admirations
Serial No.: #11557
Manufacturer:Hamilton
Grade:936
Size:18s
Model:1
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1898
Added By:Mobilaero Profile Image Mobilaero
0 Admirations
Serial No.: #902896
Manufacturer:Seth Thomas
Grade:205
Size:6s
Model:17
Jewels:15j
Setting:Lever
Finish:Two-Tone
Est. Date:1907
Added By:SethThomasFan Profile Image SethThomasFan
4 Admirations
Serial No.: #579989
Manufacturer:South Bend
Grade:329
Size:18s
Model:2
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1909
Added By:Blicquer Profile Image Blicquer
2 Admirations
Serial No.: #67158
Manufacturer:Illinois
Grade:Miller
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:June 1880 - July 1881
Added By:LIdso73 Profile Image LIdso73
Serial No.: #702963
Manufacturer:Seth Thomas
Grade:211
Size:18s
Model:9
Jewels:17j
Setting:Lever
Finish:Two-Tone
Est. Date:1902
Added By:SethThomasFan Profile Image SethThomasFan
7 Admirations
Serial No.: #1510886
Manufacturer:Illinois
Grade:Bunn Special
Size:18s
Model:6
Jewels:21j
Setting:Lever
Finish:Two-Tone
Est. Date:1900
Added By:CJEmpire3 Profile Image CJEmpire3
2 Admirations
Serial No.: #1978547
Manufacturer:Elgin
Grade:96
Size:18s
Model:4
Jewels:7j
Setting:Lever
Finish:Gilt
Est. Date:1886
Added By:cjbrem Profile Image cjbrem

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